Update of /usr/cvsroot/asterisk
In directory mongoose.digium.com:/tmp/cvs-serv688

Modified Files:
        cdr.c 
Log Message:
various fixes:
  use linked list macros for managing backend list (inspired by bug #4258)
  use ast_copy_string instead of strncpy when appropriate
  minor fixes and formatting cleanup
  add AST_LIST_HEAD_STATIC and AST_LIST_REMOVE_CURRENT macros



Index: cdr.c
===================================================================
RCS file: /usr/cvsroot/asterisk/cdr.c,v
retrieving revision 1.36
retrieving revision 1.37
diff -u -d -r1.36 -r1.37
--- cdr.c       5 May 2005 15:07:48 -0000       1.36
+++ cdr.c       15 May 2005 02:42:59 -0000      1.37
@@ -25,20 +25,20 @@
 #include "asterisk/callerid.h"
 #include "asterisk/causes.h"
 #include "asterisk/options.h"
+#include "asterisk/linkedlists.h"
 #include "asterisk/utils.h"
 
 int ast_default_amaflags = AST_CDR_DOCUMENTATION;
 char ast_default_accountcode[20] = "";
 
-AST_MUTEX_DEFINE_STATIC(cdrlock);
-
-static struct ast_cdr_beitem {
+struct ast_cdr_beitem {
        char name[20];
        char desc[80];
        ast_cdrbe be;
-       struct ast_cdr_beitem *next;
-} *bes = NULL;
+       AST_LIST_ENTRY(ast_cdr_beitem) list;
+};
 
+static AST_LIST_HEAD_STATIC(be_list, ast_cdr_beitem);
 
 /*
  * We do a lot of checking here in the CDR code to try to be sure we don't 
ever let a CDR slip
@@ -50,58 +50,58 @@
 int ast_cdr_register(char *name, char *desc, ast_cdrbe be)
 {
        struct ast_cdr_beitem *i;
+
        if (!name)
                return -1;
        if (!be) {
                ast_log(LOG_WARNING, "CDR engine '%s' lacks backend\n", name);
                return -1;
        }
-       ast_mutex_lock(&cdrlock);
-       i = bes;
-       while(i) {
+
+       AST_LIST_LOCK(&be_list);
+       AST_LIST_TRAVERSE(&be_list, i, list) {
                if (!strcasecmp(name, i->name))
                        break;
-               i = i->next;
        }
-       ast_mutex_unlock(&cdrlock);
+       AST_LIST_UNLOCK(&be_list);
+
        if (i) {
                ast_log(LOG_WARNING, "Already have a CDR backend called 
'%s'\n", name);
                return -1;
        }
-       i = malloc(sizeof(struct ast_cdr_beitem));
+
+       i = malloc(sizeof(*i));
        if (!i)         
                return -1;
-       memset(i, 0, sizeof(struct ast_cdr_beitem));
-       strncpy(i->name, name, sizeof(i->name) - 1);
-       strncpy(i->desc, desc, sizeof(i->desc) - 1);
+
+       memset(i, 0, sizeof(*i));
        i->be = be;
-       ast_mutex_lock(&cdrlock);
-       i->next = bes;
-       bes = i;
-       ast_mutex_unlock(&cdrlock);
+       ast_copy_string(i->name, name, sizeof(i->name));
+       ast_copy_string(i->desc, desc, sizeof(i->desc));
+
+       AST_LIST_LOCK(&be_list);
+       AST_LIST_INSERT_HEAD(&be_list, i, list);
+       AST_LIST_UNLOCK(&be_list);
+
        return 0;
 }
 
 void ast_cdr_unregister(char *name)
 {
-       struct ast_cdr_beitem *i, *prev = NULL;
-       ast_mutex_lock(&cdrlock);
-       i = bes;
-       while(i) {
+       struct ast_cdr_beitem *i = NULL;
+
+       AST_LIST_LOCK(&be_list);
+       AST_LIST_TRAVERSE_SAFE_BEGIN(&be_list, i, list) {
                if (!strcasecmp(name, i->name)) {
-                       if (prev)
-                               prev->next = i->next;
-                       else
-                               bes = i->next;
+                       AST_LIST_REMOVE_CURRENT(&be_list, list);
+                       if (option_verbose > 1)
+                               ast_verbose(VERBOSE_PREFIX_2 "Unregistered '%s' 
CDR backend\n", name);
+                       free(i);
                        break;
                }
-               i = i->next;
        }
-       if (option_verbose > 1)
-               ast_verbose(VERBOSE_PREFIX_2 "Unregistered '%s' CDR backend\n", 
name);
-       ast_mutex_unlock(&cdrlock);
-       if (i) 
-               free(i);
+       AST_LIST_TRAVERSE_SAFE_END;
+       AST_LIST_UNLOCK(&be_list);
 }
 
 static const char *ast_cdr_getvar_internal(struct ast_cdr *cdr, const char 
*name, int recur) 
@@ -109,110 +109,97 @@
        struct ast_var_t *variables;
        struct varshead *headp;
 
-       while(cdr) {
+       if (!name || ast_strlen_zero(name))
+               return NULL;
+
+       while (cdr) {
                headp = &cdr->varshead;
-               if (name) {
-                       AST_LIST_TRAVERSE(headp,variables,entries) {
-                               if (!strcmp(name, ast_var_name(variables)))
-                                       return ast_var_value(variables);
-                       }
+               AST_LIST_TRAVERSE(headp, variables, entries) {
+                       if (!strcasecmp(name, ast_var_name(variables)))
+                               return ast_var_value(variables);
                }
-               if (!recur) {
+               if (!recur)
                        break;
-               }
                cdr = cdr->next;
        }
+
        return NULL;
 }
 
-#define ast_val_or_null(val) do { \
-       if (val[0]) { \
-               strncpy(workspace, val, workspacelen - 1);\
-               *ret = workspace; \
-       } \
-} while(0)
-
 void ast_cdr_getvar(struct ast_cdr *cdr, const char *name, char **ret, char 
*workspace, int workspacelen, int recur) 
 {
        struct tm tm;
        time_t t;
        const char *fmt = "%Y-%m-%d %T";
+       const char *varbuf;
 
        *ret = NULL;
        /* special vars (the ones from the struct ast_cdr when requested by 
name) 
           I'd almost say we should convert all the stringed vals to vars */
 
-       if (!strcasecmp(name, "clid")) {
-               ast_val_or_null(cdr->clid);
-       } else if (!strcasecmp(name, "src")) {
-               ast_val_or_null(cdr->src);
-       } else if (!strcasecmp(name, "dst")) {
-               ast_val_or_null(cdr->dst);
-       } else if (!strcasecmp(name, "dcontext")) {
-               ast_val_or_null(cdr->dcontext);
-       } else if (!strcasecmp(name, "channel")) {
-               ast_val_or_null(cdr->channel);
-       } else if (!strcasecmp(name, "dstchannel")) {
-               ast_val_or_null(cdr->dstchannel);
-       } else if (!strcasecmp(name, "lastapp")) {
-               ast_val_or_null(cdr->lastapp);
-       } else if (!strcasecmp(name, "lastdata")) {
-               ast_val_or_null(cdr->lastdata);
-       } else if (!strcasecmp(name, "start")) {
+       if (!strcasecmp(name, "clid"))
+               ast_copy_string(workspace, cdr->clid, workspacelen);
+       else if (!strcasecmp(name, "src"))
+               ast_copy_string(workspace, cdr->src, workspacelen);
+       else if (!strcasecmp(name, "dst"))
+               ast_copy_string(workspace, cdr->dst, workspacelen);
+       else if (!strcasecmp(name, "dcontext"))
+               ast_copy_string(workspace, cdr->dcontext, workspacelen);
+       else if (!strcasecmp(name, "channel"))
+               ast_copy_string(workspace, cdr->channel, workspacelen);
+       else if (!strcasecmp(name, "dstchannel"))
+               ast_copy_string(workspace, cdr->dstchannel, workspacelen);
+       else if (!strcasecmp(name, "lastapp"))
+               ast_copy_string(workspace, cdr->lastapp, workspacelen);
+       else if (!strcasecmp(name, "lastdata"))
+               ast_copy_string(workspace, cdr->lastdata, workspacelen);
+       else if (!strcasecmp(name, "start")) {
                t = cdr->start.tv_sec;
                if (t) {
-                       localtime_r(&t,&tm);
+                       localtime_r(&t, &tm);
                        strftime(workspace, workspacelen, fmt, &tm);
-                       *ret = workspace;
                }
        } else if (!strcasecmp(name, "answer")) {
                t = cdr->start.tv_sec;
                if (t) {
-                       localtime_r(&t,&tm);
+                       localtime_r(&t, &tm);
                        strftime(workspace, workspacelen, fmt, &tm);
-                       *ret = workspace;
                }
        } else if (!strcasecmp(name, "end")) {
                t = cdr->start.tv_sec;
                if (t) {
-                       localtime_r(&t,&tm);
+                       localtime_r(&t, &tm);
                        strftime(workspace, workspacelen, fmt, &tm);
-                       *ret = workspace;
                }
-       } else if (!strcasecmp(name, "duration")) {
+       } else if (!strcasecmp(name, "duration"))
                snprintf(workspace, workspacelen, "%d", cdr->duration);
-               *ret = workspace;
-       } else if (!strcasecmp(name, "billsec")) {
+       else if (!strcasecmp(name, "billsec"))
                snprintf(workspace, workspacelen, "%d", cdr->billsec);
+       else if (!strcasecmp(name, "disposition"))
+               ast_copy_string(workspace, ast_cdr_disp2str(cdr->disposition), 
workspacelen);
+       else if (!strcasecmp(name, "amaflags"))
+               ast_copy_string(workspace, ast_cdr_flags2str(cdr->amaflags), 
workspacelen);
+       else if (!strcasecmp(name, "accountcode"))
+               ast_copy_string(workspace, cdr->accountcode, workspacelen);
+       else if (!strcasecmp(name, "uniqueid"))
+               ast_copy_string(workspace, cdr->uniqueid, workspacelen);
+       else if (!strcasecmp(name, "userfield"))
+               ast_copy_string(workspace, cdr->userfield, workspacelen);
+       else if ((varbuf = ast_cdr_getvar_internal(cdr, name, recur)))
+               ast_copy_string(workspace, varbuf, workspacelen);
+
+       if (!ast_strlen_zero(workspace))
                *ret = workspace;
-       } else if (!strcasecmp(name, "disposition")) {
-               strncpy(workspace, ast_cdr_disp2str(cdr->disposition), 
workspacelen - 1);
-               *ret = workspace;
-       } else if (!strcasecmp(name, "amaflags")) {
-               strncpy(workspace, ast_cdr_flags2str(cdr->amaflags), 
workspacelen - 1);
-               *ret = workspace;
-       } else if (!strcasecmp(name, "accountcode")) {
-               ast_val_or_null(cdr->accountcode);
-       } else if (!strcasecmp(name, "uniqueid")) {
-               ast_val_or_null(cdr->uniqueid);
-       } else if (!strcasecmp(name, "userfield")) {
-               ast_val_or_null(cdr->userfield);
-       } else {
-               if ((*ret = (char *)ast_cdr_getvar_internal(cdr, name, recur))) 
{
-                       strncpy(workspace, *ret, workspacelen - 1);
-                       *ret = workspace;
-               }
-       }
 }
 
 int ast_cdr_setvar(struct ast_cdr *cdr, const char *name, const char *value, 
int recur) 
 {
        struct ast_var_t *newvariable;
-    struct varshead *headp;
+       struct varshead *headp;
        const char *read_only[] = { "clid", "src", "dst", "dcontext", 
"channel", "dstchannel",
-                                                               "lastapp", 
"lastdata", "start", "answer", "end", "duration",
-                                                               "billsec", 
"disposition", "amaflags", "accountcode", "uniqueid",
-                                                               "userfield", 
NULL };
+                                   "lastapp", "lastdata", "start", "answer", 
"end", "duration",
+                                   "billsec", "disposition", "amaflags", 
"accountcode", "uniqueid",
+                                   "userfield", NULL };
        int x;
        
        for(x = 0; read_only[x]; x++) {
@@ -222,20 +209,22 @@
                }
        }
 
-    if (!cdr) {
+       if (!cdr) {
                ast_log(LOG_ERROR, "Attempt to set a variable on a nonexistent 
CDR record.\n");
                return -1;
        }
+
        while (cdr) {
                headp = &cdr->varshead;
-               AST_LIST_TRAVERSE (headp, newvariable, entries) {
-                       if (strcasecmp(ast_var_name(newvariable), name) == 0) {
+               AST_LIST_TRAVERSE_SAFE_BEGIN(headp, newvariable, entries) {
+                       if (!strcasecmp(ast_var_name(newvariable), name)) {
                                /* there is already such a variable, delete it 
*/
-                               AST_LIST_REMOVE(headp, newvariable, entries);
+                               AST_LIST_REMOVE_CURRENT(headp, entries);
                                ast_var_delete(newvariable);
                                break;
                        }
                }
+               AST_LIST_TRAVERSE_SAFE_END;
 
                if (value) {
                        newvariable = ast_var_assign(name, value);
@@ -245,23 +234,27 @@
                if (!recur) {
                        break;
                }
+
                cdr = cdr->next;
        }
+
        return 0;
 }
 
 int ast_cdr_copy_vars(struct ast_cdr *to_cdr, struct ast_cdr *from_cdr)
 {
        struct ast_var_t *variables, *newvariable = NULL;
-    struct varshead *headpa, *headpb;
+       struct varshead *headpa, *headpb;
        char *var, *val;
        int x = 0;
 
-       headpa=&from_cdr->varshead;
-       headpb=&to_cdr->varshead;
+       headpa = &from_cdr->varshead;
+       headpb = &to_cdr->varshead;
 
        AST_LIST_TRAVERSE(headpa,variables,entries) {
-               if (variables && (var=ast_var_name(variables)) && 
(val=ast_var_value(variables)) && !ast_strlen_zero(var) && 
!ast_strlen_zero(val)) {
+               if (variables &&
+                   (var = ast_var_name(variables)) && (val = 
ast_var_value(variables)) &&
+                   !ast_strlen_zero(var) && !ast_strlen_zero(val)) {
                        newvariable = ast_var_assign(var, val);
                        AST_LIST_INSERT_HEAD(headpb, newvariable, entries);
                        x++;
@@ -309,9 +302,11 @@
                if (x > 1) {
                        strncat(buf, "\n", size);
                }
-               headp=&cdr->varshead;
+               headp = &cdr->varshead;
                AST_LIST_TRAVERSE(headp,variables,entries) {
-                       if (cdr && variables && (var=ast_var_name(variables)) 
&& (val=ast_var_value(variables)) && !ast_strlen_zero(var) && 
!ast_strlen_zero(val)) {
+                       if (cdr && variables &&
+                           (var = ast_var_name(variables)) && (val = 
ast_var_value(variables)) &&
+                           !ast_strlen_zero(var) && !ast_strlen_zero(val)) {
                                snprintf(buf + strlen(buf), size - strlen(buf), 
"level %d: %s%c%s%c", x, var, delim, val, sep);
                                if (strlen(buf) >= size) {
                                        ast_log(LOG_ERROR,"Data Buffer Size 
Exceeded!\n");
@@ -338,8 +333,10 @@
                if (!recur) {
                        break;
                }
+
                cdr = cdr->next;
        }
+
        return total;
 }
 
@@ -350,15 +347,17 @@
        struct ast_var_t *vardata;
 
        /* clear variables */
-       while(cdr) {
+       while (cdr) {
                headp = &cdr->varshead;
                while (!AST_LIST_EMPTY(headp)) {
                        vardata = AST_LIST_REMOVE_HEAD(headp, entries);
                        ast_var_delete(vardata);
                }
+
                if (!recur) {
                        break;
                }
+
                cdr = cdr->next;
        }
 }
@@ -387,16 +386,18 @@
 struct ast_cdr *ast_cdr_alloc(void)
 {
        struct ast_cdr *cdr;
-       cdr = malloc(sizeof(struct ast_cdr));
-       if (cdr) {
-               memset(cdr, 0, sizeof(struct ast_cdr));
-       }
+
+       cdr = malloc(sizeof(*cdr));
+       if (cdr)
+               memset(cdr, 0, sizeof(*cdr));
+
        return cdr;
 }
 
 void ast_cdr_start(struct ast_cdr *cdr)
 {
        char *chan; 
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
                        chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
@@ -406,13 +407,14 @@
                                ast_log(LOG_WARNING, "CDR on channel '%s' 
already started\n", chan);
                        gettimeofday(&cdr->start, NULL);
                }
-                       cdr = cdr->next;
+               cdr = cdr->next;
        }
 }
 
 void ast_cdr_answer(struct ast_cdr *cdr)
 {
        char *chan; 
+
        while (cdr) {
                chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
@@ -429,6 +431,7 @@
 void ast_cdr_busy(struct ast_cdr *cdr)
 {
        char *chan; 
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
                        chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
@@ -444,6 +447,7 @@
 void ast_cdr_failed(struct ast_cdr *cdr)
 {
        char *chan; 
+
        while (cdr) {
                chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
@@ -457,22 +461,23 @@
 int ast_cdr_disposition(struct ast_cdr *cdr, int cause)
 {
        int res = 0;
+
        while (cdr) {
                switch(cause) {
-                       case AST_CAUSE_BUSY:
-                               ast_cdr_busy(cdr);
-                               break;
-                       case AST_CAUSE_FAILURE:
-                               ast_cdr_failed(cdr);
-                               break;
-                       case AST_CAUSE_NORMAL:
-                               break;
-                       case AST_CAUSE_NOTDEFINED:
-                               res = -1;
-                               break;
-                       default:
-                               res = -1;
-                               ast_log(LOG_WARNING, "Cause not handled\n");
+               case AST_CAUSE_BUSY:
+                       ast_cdr_busy(cdr);
+                       break;
+               case AST_CAUSE_FAILURE:
+                       ast_cdr_failed(cdr);
+                       break;
+               case AST_CAUSE_NORMAL:
+                       break;
+               case AST_CAUSE_NOTDEFINED:
+                       res = -1;
+                       break;
+               default:
+                       res = -1;
+                       ast_log(LOG_WARNING, "Cause not handled\n");
                }
                cdr = cdr->next;
        }
@@ -482,12 +487,13 @@
 void ast_cdr_setdestchan(struct ast_cdr *cdr, char *chann)
 {
        char *chan; 
+
        while (cdr) {
                chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
                        ast_log(LOG_WARNING, "CDR on channel '%s' already 
posted\n", chan);
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
-                       strncpy(cdr->dstchannel, chann, sizeof(cdr->dstchannel) 
- 1);
+                       ast_copy_string(cdr->dstchannel, chann, 
sizeof(cdr->dstchannel));
                cdr = cdr->next;
        }
 }
@@ -495,6 +501,7 @@
 void ast_cdr_setapp(struct ast_cdr *cdr, char *app, char *data)
 {
        char *chan; 
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
                        chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
@@ -502,10 +509,10 @@
                                ast_log(LOG_WARNING, "CDR on channel '%s' 
already posted\n", chan);
                        if (!app)
                                app = "";
-                       strncpy(cdr->lastapp, app, sizeof(cdr->lastapp) - 1);
+                       ast_copy_string(cdr->lastapp, app, 
sizeof(cdr->lastapp));
                        if (!data)
                                data = "";
-                       strncpy(cdr->lastdata, data, sizeof(cdr->lastdata) - 1);
+                       ast_copy_string(cdr->lastdata, data, 
sizeof(cdr->lastdata));
                }
                cdr = cdr->next;
        }
@@ -515,13 +522,11 @@
 {
        char tmp[AST_MAX_EXTENSION] = "";
        char *num;
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
                        /* Grab source from ANI or normal Caller*ID */
-                       if (c->cid.cid_ani)
-                               num = c->cid.cid_ani;
-                       else
-                               num = c->cid.cid_num;
+                       num = c->cid.cid_ani ? c->cid.cid_ani : c->cid.cid_num;
                        
                        if (c->cid.cid_name && num)
                                snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", 
c->cid.cid_name, num);
@@ -529,16 +534,12 @@
                                strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
                        else if (num)
                                strncpy(tmp, num, sizeof(tmp) - 1);
-                       else
-                               strcpy(tmp, "");
-                       strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
-                       if (num)
-                               strncpy(cdr->src, num, sizeof(cdr->src) - 1);
-                       else
-                               strcpy(cdr->src, "");
+                       ast_copy_string(cdr->clid, tmp, sizeof(cdr->clid));
+                       ast_copy_string(cdr->src, num ? num : "", 
sizeof(cdr->src));
                }
                cdr = cdr->next;
        }
+
        return 0;
 }
 
@@ -548,17 +549,15 @@
        char *chan;
        char *num;
        char tmp[AST_MAX_EXTENSION] = "";
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
                        chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                        if (!ast_strlen_zero(cdr->channel)) 
                                ast_log(LOG_WARNING, "CDR already initialized 
on '%s'\n", chan); 
-                       strncpy(cdr->channel, c->name, sizeof(cdr->channel) - 
1);
+                       ast_copy_string(cdr->channel, c->name, 
sizeof(cdr->channel));
                        /* Grab source from ANI or normal Caller*ID */
-                       if (c->cid.cid_ani)
-                               num = c->cid.cid_ani;
-                       else
-                               num = c->cid.cid_num;
+                       num = c->cid.cid_ani ? c->cid.cid_ani : c->cid.cid_num;
                        
                        if (c->cid.cid_name && num)
                                snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", 
c->cid.cid_name, num);
@@ -566,28 +565,17 @@
                                strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
                        else if (num)
                                strncpy(tmp, num, sizeof(tmp) - 1);
-                       else
-                               strcpy(tmp, "");
-                       strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
-                       if (num)
-                               strncpy(cdr->src, num, sizeof(cdr->src) - 1);
-                       else
-                               strcpy(cdr->src, "");
+                       ast_copy_string(cdr->clid, tmp, sizeof(cdr->clid));
+                       ast_copy_string(cdr->src, num ? num : "", 
sizeof(cdr->src));
 
-                       if (c->_state == AST_STATE_UP)
-                               cdr->disposition = AST_CDR_ANSWERED;
-                       else
-                               cdr->disposition = AST_CDR_NOANSWER;
-                       if (c->amaflags)
-                               cdr->amaflags = c->amaflags;
-                       else
-                               cdr->amaflags = ast_default_amaflags;
-                       strncpy(cdr->accountcode, c->accountcode, 
sizeof(cdr->accountcode) - 1);
+                       cdr->disposition = (c->_state == AST_STATE_UP) ?  
AST_CDR_ANSWERED : AST_CDR_NOANSWER;
+                       cdr->amaflags = c->amaflags ? c->amaflags :  
ast_default_amaflags;
+                       ast_copy_string(cdr->accountcode, c->accountcode, 
sizeof(cdr->accountcode));
                        /* Destination information */
-                       strncpy(cdr->dst, c->exten, sizeof(cdr->dst) - 1);
-                       strncpy(cdr->dcontext, c->context, 
sizeof(cdr->dcontext) - 1);
+                       ast_copy_string(cdr->dst, c->exten, sizeof(cdr->dst));
+                       ast_copy_string(cdr->dcontext, c->context, 
sizeof(cdr->dcontext));
                        /* Unique call identifier */
-                       strncpy(cdr->uniqueid, c->uniqueid, 
sizeof(cdr->uniqueid) - 1);
+                       ast_copy_string(cdr->uniqueid, c->uniqueid, 
sizeof(cdr->uniqueid));
                }
                cdr = cdr->next;
        }
@@ -597,6 +585,7 @@
 void ast_cdr_end(struct ast_cdr *cdr)
 {
        char *chan;
+
        while (cdr) {
                chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
@@ -620,9 +609,8 @@
                return "BUSY";          
        case AST_CDR_ANSWERED:
                return "ANSWERED";
-       default:
-               return "UNKNOWN";
        }
+       return "UNKNOWN";
 }
 
 char *ast_cdr_flags2str(int flag)
@@ -642,10 +630,10 @@
 {
        struct ast_cdr *cdr = chan->cdr;
 
-       strncpy(chan->accountcode, account, sizeof(chan->accountcode) - 1);
+       ast_copy_string(chan->accountcode, account, sizeof(chan->accountcode));
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
-                       strncpy(cdr->accountcode, chan->accountcode, 
sizeof(cdr->accountcode) - 1);
+                       ast_copy_string(cdr->accountcode, chan->accountcode, 
sizeof(cdr->accountcode));
                cdr = cdr->next;
        }
        return 0;
@@ -657,9 +645,9 @@
        int newflag;
 
        newflag = ast_cdr_amaflags2int(flag);
-       if (newflag) {
+       if (newflag)
                cdr->amaflags = newflag;
-       }
+
        return 0;
 }
 
@@ -669,9 +657,10 @@
 
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) 
-                       strncpy(cdr->userfield, userfield, 
sizeof(cdr->userfield) - 1);
+                       ast_copy_string(cdr->userfield, userfield, 
sizeof(cdr->userfield));
                cdr = cdr->next;
        }
+
        return 0;
 }
 
@@ -679,14 +668,15 @@
 {
        struct ast_cdr *cdr = chan->cdr;
 
-       while (cdr)
-       {
-
+       while (cdr) {
                int len = strlen(cdr->userfield);
+
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
                        strncpy(cdr->userfield+len, userfield, 
sizeof(cdr->userfield) - len - 1);
+
                cdr = cdr->next;
        }
+
        return 0;
 }
 
@@ -695,14 +685,10 @@
        struct ast_cdr *cdr = c->cdr;
        char *num;
        char tmp[AST_MAX_EXTENSION] = "";
-       /* Grab source from ANI or normal Caller*ID */
+
        while (cdr) {
                if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
-                       /* Grab source from ANI or normal Caller*ID */
-                       if (c->cid.cid_ani)
-                               num = c->cid.cid_ani;
-                       else
-                               num = c->cid.cid_num;
+                       num = c->cid.cid_ani ? c->cid.cid_ani : c->cid.cid_num;
                        
                        if (c->cid.cid_name && num)
                                snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", 
c->cid.cid_name, num);
@@ -710,25 +696,14 @@
                                strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
                        else if (num)
                                strncpy(tmp, num, sizeof(tmp) - 1);
-                       else
-                               strcpy(tmp, "");
-                       strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
-                       if (num)
-                               strncpy(cdr->src, num, sizeof(cdr->src) - 1);
-                       else
-                               strcpy(cdr->src, "");
+                       ast_copy_string(cdr->clid, tmp, sizeof(cdr->clid));
+                       ast_copy_string(cdr->src, num ? num : "", 
sizeof(cdr->src));
 
                        /* Copy account code et-al */   
-                       strncpy(cdr->accountcode, c->accountcode, 
sizeof(cdr->accountcode) - 1);
+                       ast_copy_string(cdr->accountcode, c->accountcode, 
sizeof(cdr->accountcode));
                        /* Destination information */
-                       if (ast_strlen_zero(c->macroexten))
-                               strncpy(cdr->dst, c->exten, sizeof(cdr->dst) - 
1);
-                       else
-                               strncpy(cdr->dst, c->macroexten, 
sizeof(cdr->dst) - 1);
-                       if (ast_strlen_zero(c->macrocontext))
-                               strncpy(cdr->dcontext, c->context, 
sizeof(cdr->dcontext) - 1);
-                       else
-                               strncpy(cdr->dcontext, c->macrocontext, 
sizeof(cdr->dcontext) - 1);
+                       ast_copy_string(cdr->dst, 
(ast_strlen_zero(c->macroexten)) ? c->exten : c->macroexten, sizeof(cdr->dst));
+                       ast_copy_string(cdr->dcontext, 
(ast_strlen_zero(c->macrocontext)) ? c->context : c->macrocontext, 
sizeof(cdr->dcontext));
                }
                cdr = cdr->next;
        }
@@ -753,6 +728,7 @@
 {
        char *chan;
        struct ast_cdr_beitem *i;
+
        while (cdr) {
                chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : 
"<unknown>";
                if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
@@ -762,18 +738,16 @@
                if (!cdr->start.tv_sec && !cdr->start.tv_usec)
                        ast_log(LOG_WARNING, "CDR on channel '%s' lacks 
start\n", chan);
                cdr->duration = cdr->end.tv_sec - cdr->start.tv_sec + 
(cdr->end.tv_usec - cdr->start.tv_usec) / 1000000;
-               if (cdr->answer.tv_sec || cdr->answer.tv_usec) {
+               if (cdr->answer.tv_sec || cdr->answer.tv_usec)
                        cdr->billsec = cdr->end.tv_sec - cdr->answer.tv_sec + 
(cdr->end.tv_usec - cdr->answer.tv_usec) / 1000000;
-               } else
+               else
                        cdr->billsec = 0;
                ast_set_flag(cdr, AST_CDR_FLAG_POSTED);
-               ast_mutex_lock(&cdrlock);
-               i = bes;
-               while(i) {
+               AST_LIST_LOCK(&be_list);
+               AST_LIST_TRAVERSE(&be_list, i, list) {
                        i->be(cdr);
-                       i = i->next;
                }
-               ast_mutex_unlock(&cdrlock);
+               AST_LIST_UNLOCK(&be_list);
                cdr = cdr->next;
        }
 }
@@ -781,6 +755,7 @@
 void ast_cdr_reset(struct ast_cdr *cdr, int flags)
 {
        struct ast_flags tmp = {flags};
+
        while (cdr) {
                /* Post if requested */
                if (ast_test_flag(&tmp, AST_CDR_FLAG_LOCKED) || 
!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
@@ -790,7 +765,7 @@
                        }
 
                        /* clear variables */
-                       if (! ast_test_flag(&tmp, AST_CDR_FLAG_KEEP_VARS)) {
+                       if (!ast_test_flag(&tmp, AST_CDR_FLAG_KEEP_VARS)) {
                                ast_cdr_free_vars(cdr, 0);
                        }
 
@@ -807,19 +782,21 @@
                        
                cdr = cdr->next;
        }
-       
 }
 
 struct ast_cdr *ast_cdr_append(struct ast_cdr *cdr, struct ast_cdr *newcdr) 
 {
        struct ast_cdr *ret;
+
        if (cdr) {
                ret = cdr;
-               while(cdr->next)
+
+               while (cdr->next)
                        cdr = cdr->next;
                cdr->next = newcdr;
        } else {
                ret = newcdr;
        }
+
        return ret;
 }

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